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Hi there,

Do you need a sample variance / standard deviation or a population variance / standard deviation?

Let me know,

-Scott

Great, thanks!

mean = average of the numbers

= (8+35+31+26+36+41+29+40+17+16+33+38+30+34+13)/15

= 28.46667

var = sum of square deviations from the mean, divided by one less than the sample size

= ((8-28.46667)^2+(35-28.46667)^2+(31-28.46667)^2+(26-28.46667)^2+(36-28.46667)^2+(41-28.46667)^2+(29-28.46667)^2+(40-28.46667)^2+(17-28.46667)^2+(16-28.46667)^2+(33-28.46667)^2+(38-28.46667)^2+(30-28.46667)^2+(34-28.46667)^2+(13-28.46667)^2)/14

=(NNN) NNN-NNNN/p>

stdev = sqrt(var)

= sqrt(106.5524)

= 10.3224

Let me know if you have any questions, and thanks for accepting!

Scott